1040212511225 has 12 divisors (see below), whose sum is σ = 1304356365180. Its totient is φ = 822819782400.

The previous prime is 1040212511167. The next prime is 1040212511249. The reversal of 1040212511225 is 5221152120401.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 22815498304 + 1017397012921 = 151048^2 + 1008661^2 .

It is not a de Polignac number, because 1040212511225 - 2⁸ = 1040212510969 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1040212511194 and 1040212511203.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 233753396 + ... + 233757845.

It is an arithmetic number, because the mean of its divisors is an integer number (108696363765).

Almost surely, 2^{1040212511225} is an apocalyptic number.

It is an amenable number.

1040212511225 is a deficient number, since it is larger than the sum of its proper divisors (264143853955).

1040212511225 is an equidigital number, since it uses as much as digits as its factorization.

1040212511225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467511340 (or 467511335 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 26.

Adding to 1040212511225 its reverse (5221152120401), we get a palindrome (6261364631626).

The spelling of 1040212511225 in words is "one trillion, forty billion, two hundred twelve million, five hundred eleven thousand, two hundred twenty-five".